Towards emission-free sea dike revetments: Making sustainable design choices by employing probabilistic safety assessment and integrating the environmental cost indicator in the parametric design process of sea dike revetments

Large parts of the Netherlands lay below mean sea level. An extensive network of flood protection measures is in place to prevent flooding. Periodic safety assessment and reinforcement are required to guarantee a resilient system. Currently, in the Netherlands, an extensive sea dike reinforcement program is underway to meet the safety standards...

Safety through Machine Learning Applications: A Safety Case Analysis

Machine learning applications are increasingly being implemented in socio-technical safety-critical systems, but the safety of these applications is not well understood. This thesis used a mixed-method design and applied four methods to explore the field of machine learning and safety. With the results of these four methods, a framework was...

An evaluation of safety assessment methods for a reinforced concrete frame using non-linear finite element analyses

In order to perform a reassessment of existing structures or design new structures in a more efficient and economical way non-linear finite element (NLFE) models are used to take into account all non-linear behavior in reinforced concrete structures. The Model Code 2010 (fib, 2012) suggest several safety formats to perform non-linear finite...

Safety assessment method for macro-stability of dikes with high foreshores

This Thesis studies the safety assessment method for macro-stability of dikes with high foreshores. Currently, this method is a semi-probabilistic method, which does not take the presence of a foreshore into account. The research concludes that the presence of a foreshore has a significant influence on the failure probability with respect to...

A Study of the Application of Safety Formats in Non-linear Finite Element Analysis of Reinforced Concrete Tunnel Segment

The application of non-linear finite element analysis is important nowadays to simulate the real behavior of structure. A sort of non-linear finite element analysis with and without safety formats referring to Model Code 2010 is applied in this thesis, to study the FEM simulation of the shear capacity of reinforced concrete structure. A case...

Using a process-based model for dune safety assessment: A case study of Delfland with a 2DH XBeach model

With the implementation of new legal aspects for dune safety assessment in 2017, the current method, Duros+, is no longer feasible to represent the desired processes. This 1D deterministic, volume-balance model cannot simulate processes like inundation and overwash, which are crucial to fulfil the new requirements for dune safety assessment....

A method to calculate the probability of dike failure due to wave overtopping, including the infragravity waves and morphological changes

In this thesis, a method was developed, with which the infragravity waves and morphological changes of a sandy foreshore are included in the calculation of the probability of dike failure due to wave overtopping. Constructing a natural foreshore in front of the dike can be an attractive and innovative method to decrease the failure probability....

Safety Assessment Method for Indirect Failure Mode Flow Sliding

Flow sliding of submerged slopes in front of dikes affects flood safety. The occurrence of flow sliding may result, sometimes with delay, in a failure mode and consequent flooding. The current safety assessment method for flow sliding does not consider the interaction between flow sliding and failure modes. Therefore it is unclear whether the...